Home / 88,140.84-121,634.40-47,854.56

Finding the Fourth Proportional to 88,140.84, 121,634.40 and 47,854.56

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Solution

The fourth proportional to 88,140.84, 121,634.40 and 47,854.56 is: 66,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,140.84 : 121,634.40 = 47,854.56 : x
  2. Step 2: Convert to fraction form
    88,140.84/121,634.40 = 47,854.56/x
  3. Step 3: Cross multiply
    88,140.84x = 121,634.40 × 47,854.56
  4. Step 4: Simplify right side
    88,140.84x = 5,820,760,692.86
  5. Step 5: Solve for x
    x = 5,820,760,692.86/88,140.84
  6. Step 6: Final answer
    x = 66,039.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.